Kalmar "Beta receptor" tana nufin nau'in mai karɓa da aka samo a saman sel a cikin jiki wanda ke ɗaure da epinephrine hormone (adrenaline) da norepinephrine (noradrenaline). Akwai nau'ikan beta receptors iri biyu, beta-1 da beta-2, waɗanda ake samun su a cikin kyallen takarda da gabobin daban-daban. yana kara yawan bugun zuciya da karfin kunci, da kuma kara sakin renin daga koda. Ana samun masu karɓar beta-2 a cikin huhu, hanta, pancreas, da tasoshin jini, kuma idan an motsa su, suna kwantar da tsokoki masu santsi a cikin waɗannan kyallen takarda kuma suna ƙara yawan jini zuwa tsokoki.Beta receptors are important targets for magungunan da ake amfani da su don magance yanayi kamar gazawar zuciya, asma, da hauhawar jini.